27704715344413 has 4 divisors (see below), whose sum is σ = 27720701910108. Its totient is φ = 27688728778720.

The previous prime is 27704715344401. The next prime is 27704715344431. The reversal of 27704715344413 is 31444351740772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22179409088004 + 5525306256409 = 4709502^2 + 2350597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27704715344413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27704715344513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7993280248 + ... + 7993283713.

It is an arithmetic number, because the mean of its divisors is an integer number (6930175477527).

Almost surely, 2^{27704715344413} is an apocalyptic number.

It is an amenable number.

27704715344413 is a deficient number, since it is larger than the sum of its proper divisors (15986565695).

27704715344413 is a wasteful number, since it uses less digits than its factorization.

27704715344413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15986565694.

The product of its (nonzero) digits is 7902720, while the sum is 52.

The spelling of 27704715344413 in words is "twenty-seven trillion, seven hundred four billion, seven hundred fifteen million, three hundred forty-four thousand, four hundred thirteen".